Finding the Fourth Proportional to 152,704.89, 210,742.72 and 88,176.85

Step by Step Solution

1. Step 1: Write the proportion equation
   152,704.89 : 210,742.72 = 88,176.85 : x
2. Step 2: Convert to fraction form
   152,704.89/210,742.72 = 88,176.85/x
3. Step 3: Cross multiply
   152,704.89x = 210,742.72 × 88,176.85
4. Step 4: Simplify right side
   152,704.89x = 18,582,628,462.73
5. Step 5: Solve for x
   x = 18,582,628,462.73/152,704.89
6. Step 6: Final answer
   x = 121,689.81